December 2014 - AMSAT-BB - mailman.amsat.org

EQUiSat Optical Beacon CubeSat
by Trevor . 17 Oct '18

17 Oct '18

Students at the Ivy League Brown University are developing an amateur radio satellite EQUiSat that will carry a Xenon Flash Tube (XFT) subsystem to act as an Optical Beacon that should be visible to the unaided eye of observers on Earth. See http://www.uk.amsat.org/?p=10635 73 Trevor M5AKA AMSAK-UK http://www.amsat-uk.org/ ----

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LVB Tracker USB serial port driver for Windows 7 x64?
by Bill Bordy, NJ1H 22 Dec '16

22 Dec '16

Has anyone located a driver for the LVB Tracker internal USB to serial port adapter on Windows 7 x64? If not, has anyone reverted to the serial port connection on LVB Tracker and used an external USB to serial port adapter successfully with SatPC32 on Windows 7 x64? I have an Edgeport multiple USB to serial port that has drivers for Windows 7 x64 that I will use if I have to. I would prefer using the LVB Tracker with its USB to serial adapter if someone has another solution. 73, Bill NJ1H

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AO-16 telemetry 3 Oct 2010
by Mark L. Hammond 01 Jul '16

01 Jul '16

Hi All, Here is a quick AO-16 update. On Sunday I turned AO-16 long enough to get some telemetry packets. The satellite would remain on for less than one minute after being commanded on. A quick test of the "bent pipe" voice mode repeater was successful. . The "hardware watchdog timer problem" is still evident; as expected, spacecraft temperatures are insufficient to keep the transmitter ON (needs to be above 15 deg C). Orbit projections suggest that satellite illumination conditions will not result in increased temperatures for nearly 10 years. Command stations do periodically turn AO-16 "ON" to check on its condition and see if the hardware timer problem has "automagically" fixed itself (which in not anticipated, but who knows...). AO-16 telemetry 3 Oct 2010 1838 utc PACSAT MBL Telemetry Decoder Ver. 1.3 (c) Mike Rupprecht, DK3WN =============================================================================== (average values) +10V Battery Bus : 0.00 V Battery Charge Reg : 0.55 mA Base Temp : 9.07 °C PSK RF Out : 1.90 W +5V RX Bus : 4.87 V +8.5V RX Bus : 8.49 V +10V RX Bus : 11.24 V Here is another teaser :) Several months ago I commanded the AO-16 S-band transmitter ON; it too remains functional (albeit weak), and was received by me, Drew KO4MA, and Alan WA4SCA. 73, -- Mark L. Hammond [N8MH]

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CAPE-2 heard in France
by Jean-Pierre Godet 25 Sep '15

25 Sep '15

Dear friends from University of loisiana in Lafayette, Your bird was heard in the North of France when flying over Oran (Algeria), orbit number 204, especially the CW beacon (on 145.823 MHz +- Doppler) between 12:12:52 and 12:13:06 UTC, content was "EUL CAPE 2 OR UF231". The signal was somewhat chirpy, but it's exactly the sound which the real lover of CW like above all. Really ! :-) http://f5yg.pagesperso-orange.fr/forum/CAPE-2_orb204_03dec2013.mp3 The signal to noise ratio is not too good because I'm using an old AM/FM scanner from the 80s heterodyned by my medium wave homebrew transmitter fitted with a 456.9 Xtal. The antenna was a vertical half-wave inside the attic. The next orbit, number 205, was heard too, with the CW beacon affected at that time by a hoarse voice and suffering from a strong fadding. So I'm not absolutly sure, poor lonesome telegraphist, of my human decoding, "M5UL CAPE 2 ÜR 5045", something like that. It was over the East coast of Spain, between 12:12:52 and 12:13:06 : http://f5yg.pagesperso-orange.fr/forum/CAPE-2_orb205_03dec2013.mp3 Congratulation to the Cajun Advanced Picosat Experiment team from France ! Jean-Pierre F5YG -- Powered by Linux (Slackware 10.0 - kernel 2.4.26)

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Re: [amsat-bb] Has anyone heard the 9600 baud signals from Spinsat?
by Armando Mercado 24 Apr '15

24 Apr '15

Hi, I've listened for Spinsat on 437.230 several times with no results. There have been no reception reports from Spinsat to the best of my knowledge. It is still near the ISS. Latest keps can be found at: http://www.celestrak.com/cgi-bin/TLE.pl?CATNR=40314 73, Armando N8IGJ

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W100AW ISS Digi 1558Z-1609Z
by Sean K. 05 Jan '15

05 Jan '15

Let's give it a try, shall we? Sean Kutzko Amateur Radio KX9X

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FJ93 Grid expedition by PV8DX Jan 3-4, 2015
by John Papay 03 Jan '15

03 Jan '15

Paulo PV8DX and Abilio PV8AZ are planning a grid expedition to FJ93wf, 1600utc 03 January to 1200utc 04 January 2015. Operation will be from a 400m high mountain. They will operate with a battery/generator on the satellites. It will be a difficult trip up the mountain. They will also be able to monitor 28.390 thanks to a 10m to 2 meter repeater operated by their club LABRE. They will be able to transmit as well as receive using this system. Paulo asks that everyone be patient as they will be operating under very difficult conditions. Although not specified, Paulo usually operates on the linear birds but don't rule out SO-50 if in range. Paulo has a very nice portable station and everyone should be able to hear him and make a contact. This is likely a new grid for everyone. Good luck. 73, John K8YSE

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Re: [amsat-bb] Non-receipt of the Journal .....now received
by B J 31 Dec '14

31 Dec '14

On 12/31/14, Stefan Wagener <wageners(a)gmail.com> wrote: > Tell me about it. > > It takes "eons" to reach the great cold north. Still always get it :-) <snip> My issue often arrives here in DO33 about a week or two after those south of the border get theirs. 73s Bernhard VA6BMJ @ DO33FL

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CW satellite beacon on 145.865?
by Pedro Converso 31 Dec '14

31 Dec '14

Hi Dani, Agree with previous comments, should be NCBR-1 brazilian CubeSat. Next time try http://amsat.org.ar/sat.htm should show satellites at reach. 73, lu7abf, Pedro

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Question
by Dave Marthouse 31 Dec '14

31 Dec '14

What is the proposed power out for the Fox satellite? How does this compare to AO-51? -- Dave Marthouse N2AAM dmarthouse(a)gmail.com

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